20372520270205 has 16 divisors (see below), whose sum is σ = 24537224779200. Its totient is φ = 16237900493568.

The previous prime is 20372520270191. The next prime is 20372520270241. The reversal of 20372520270205 is 50207202527302.

It is a cyclic number.

It is not a de Polignac number, because 20372520270205 - 2⁹ = 20372520269693 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8009074 + ... + 10241596.

It is an arithmetic number, because the mean of its divisors is an integer number (1533576548700).

Almost surely, 2^{20372520270205} is an apocalyptic number.

It is an amenable number.

20372520270205 is a deficient number, since it is larger than the sum of its proper divisors (4164704508995).

20372520270205 is a wasteful number, since it uses less digits than its factorization.

20372520270205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239260.

The product of its (nonzero) digits is 117600, while the sum is 37.

Adding to 20372520270205 its reverse (50207202527302), we get a palindrome (70579722797507).

The spelling of 20372520270205 in words is "twenty trillion, three hundred seventy-two billion, five hundred twenty million, two hundred seventy thousand, two hundred five".